Percentage calculator

Solves the most common percentage questions: what is 15% of 240? What percentage is 30 of 120? By how much has a price gone up?

What you enter is processed in this browser only and is not transmitted.

Loading tool …

How it works

  1. Choose a calculation.
  2. Enter the two values.
  3. Click “Calculate”; after that the result updates with every change.

Notes and limitations

  • Percentage change always refers to the starting value.
  • A 20% increase followed by a 20% decrease does not bring you back to where you started.

Frequently asked questions

What is the difference between percent and percentage points?

If an interest rate goes from 2% to 3%, that is an increase of 1 percentage point, but a rise of 50 percent.